Just curious about the gas mileage you guys are getting in your aveo's. any help would be greatly appreciated. thanks

On my Aveo with 1000 mi on speedo, i AM GETTING 28mpg /AUTO /AIR AROUND TOWN DRIVING. Should improve with age. Love the car especially since I installed Cruise Control.

On my Aveo with 1000 mi on speedo, i AM GETTING 28mpg /AUTO /AIR AROUND TOWN DRIVING. Should improve with age. Love the car especially since I installed Cruise Control.
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How much did it cost you to add cuise? Sounds like you did it yourself? Was it difficult?

On my Aveo with 1000 mi on speedo, i AM GETTING 28mpg /AUTO /AIR AROUND TOWN DRIVING. Should improve with age. Love the car especially since I installed Cruise Control.
I paid 199.00 for cruise on ebay, it took about an hour to install with all connections basically plug in, except for power taps that were crimp on (ALL PARTS SUPPLIED) after I installed it I got a notice from supplier that he would supply it for a lesser cost.

"(MY NAME IS JOE BRANDENBURG FROM BRANDON DISTRIBUTING INC. ROSTRA HAS ASKED ME TO GET IN CONTACT WITH YOU ABOUT THE CUSTOM CRUISE CONTROLL FOR YOUR 2004 AVEO. THE PART NUMBER FOR THIS UNIT IS 250-1753 AND WOULD COST YOU $171.48. IF YOU WOULD LIKE TO ORDER ONE PLEASE CALL ME AT 877-402-3944)"

This cruise is a good one and works as it is supposed to with ability to hold speed down to around 30MPH. Tom

Just curious about the gas mileage you guys are getting in your aveo's. any help would be greatly appreciated. thanks


I am only getting like 22/27

A lot lower than the window sticker

I have around 4,000 miles on my '04 and on my last fill up I hit 35 mpg. This is mostly highway driving. It's getting better as it breaks in. I started out at 28-30 for a while. Then a while at 30-33. If I do a lot of city driving I get around 30. It's a 5spd, although I don't think there was much difference between 5spd and auto on the window sticker (maybe 1mpg?).

i driuve an auto trans and i get 26-27 each tank. lots of town and freeway action. cruise control would be cool, but wouldnt it void the warranty? they made it clear to me like 20 times.

I just got an '05 aveo LT. I have about 1,500 miles on it and am getting about 32.5 mpg fairly consistently. Mostly freeway driving between Houston and Austin. Sure wish the car had a 15 gallon tank, and not an 11.9 gallon one. I keep filling up right on E and only putting in 9 gallons. Around 300 miles worth.

That's with the A/C on, not that you notice much by having it on. Only about a 10F difference at almost maxed. The thermometer says it's coming out 40F, but I don't know where it's going after that, cause it sure aint sticking around in the car.

I used to drive an '87 sprint. It got 52mpg at one point and that's with just a carborator. It was still getting 38mpg at 150K miles. After 4 teenage drivers learned how to drive on it. The aveo has a lot more pep than that car. But not nearly as good of gas mileage. I could get 32mpg freeway out of a '90 grand am. And 36mpg freeway out of an '89 mustang LX. Although the mustang only got about 15mpg city driving. 32.5mpg from the aveo is kind of a disappointment.

I miss the sprint, put in 8 gallons and go 450 miles. The aveo is no sprint. 9 gallons and 300 miles. Although it has a lot more pep. Which you need with todays driving habits. I am hoping it lasts as long as that sprint did. But not holding my breathe too much.

Man, I never get over 18 mpg 'in town' driving with air and auto tyransmission. I'm amazed! Now on the road it is a different story. I usually get 30-35.

For town driving I reset my Odometer and I have never gotten over 210 miles on a tank with combination driving using all variables. Think I should complain? Other than that it has given me zero problems barring the gas cover failing to unlock!


Thanks!
Randy Carver

I just got back from a trip to Scranton, PA for the DCA world championships. I averaged about 35 mpg on the way up. I got my first oil change in PA at roughly 4,000 miles and recorded my mileage and fuel consumption on the way back. Bear in mind the A/C was mostly on and I was carrying about 650 lbs of people and luggage.

18.565 gallons / 655 miles / 35.381444 mpg (didn't fill it one time so combined the two for an accurate topped off reading.)

6.879 gallons / 286 miles / 41.57581 mpg (got hungry and figured we might as well fuel too)

9.338 gallons / 337 miles / 36.089098 mpg

7.3 gallons / 265 miles / 36.30137 mpg (a very old style pump somewhere in Louisianna)

8.656 gallons / 332 miles / 38.762405 mpg (almost home so last fueling)

But that's almost all freeway miles. I live in texas so things are fairly far apart. I now have roughly 6,000 miles on the vehicle. After just a little over 5 weeks.

There are some quirks with the transmission that I'll probably have the dealer check out when I bring it in next time. Since the software upgrade it seems to shift excessively late if the A/C is on. I have to let off the gas and repump it to get it to shift from 3rd to 4th. Even if I just got on the freeway and am basically cruising at 65mph.

The car seems to get it's best mileage at 65mph. Pushing it to 70mph plus saps a 4-8 mpg from it. Running the A/C another 4-8 mpg. Just my observations / opinion.

Take note of the GM6094M oil rating in the manual. Very few oils seem to meet that standard. Castrol GTX seems to meet it, which is what I normally put in anyway. Which is the ONLY one I saw at WalMart that did. It's in small print on the back of the quart.

Shadow_7

What is the GM oil rating?

What is the GM oil rating?

[B]
I just wanted you to know I took the advise and had my oil changed to Castrol GTX 5-40! I am now getting 8 more MPG 'town' and 6 more MPG 'road' driving!!! I was told the 5-40 was also very important along with the rating...since it is 'thinner', but holds up very well.

The rating has to do with many factors such as viscosity, longevity, detergent, etc. It is arbitrary on GM's part but someone has done their homework!

P L E A S E HELP WITH THE WIRE HARNESS REFERRED TO WHEN INSTALLING AN AMP FOR WOOFERS. WHERE DOES THAT THING COME FROM. THE CD/RADIO DESCRIBES ALL THE WIRING BUT STILL NO LINE OUT... P L E A S E H E L P ! ! !

Thanks so much,
Randy C

I read the info on oil in the owner's manual and saw the mention of gm oil rating. I find it hard to believe that Castrol is the only oil company to conform to the GM standard. I wonder what the relationship between GM and Castrol is. Am I to believe that the full synthetic 5w30 SM rating that I switched to is substandard for this vehicle? From what I understand (but I'm not an expert) as long as the oil has that sunburst symbol from the API and has the latest rating like SM then the oil is acceptable. We're also talking about an engine that I've read was probably designed before the SM oil rating. And the oil ratings are backward compatible. That is, if your car was designed to run with SJ rated oil then the newer SM rating will work fine. This all leads me to believe that GM uses these cryptic ratings to steer you to a particular product because they have an interest in the company.

Just a heads up. Last month the dealership put in 10W-30 oil. At which point in time I got 27mpg, which improved to 32mpg by the 3,000 mark. I made sure they put in 5W-30 the next time and I got 36mpg fairly consistently. Almost all freeway miles. If you're not getting 32mpg to 38mpg, you probably aren't getting 5W-30 motor oil in your car when you have your oil changed. I got the 41mpg on Castrol GTX 5W-30, which was the cars first oil change.

In this day and age, a difference of 5 to 8 mpg adds up to about $40 to $60 in gas between oil changes.

we are pretty ussually about 32 auto, air, cruise. i cant wait til the warrentee runs out so i can start to add things to see if i can help it out.

unfortunately in a way...owning a car this cheap takes some know how of cars...and a lot of effort on maintence. I noticed that mine wasn't getting super duper mileage so...i started making sure that every other week i checked air pressure in the tires (although im changing my tires soon..they do make a differance)...changed the oil on the dot (in all chevys for whatever reason this really makes the differance)
I also went to spark plugs.com and NGK offers iridium spark plugs for the aveo. So with the spark plugs, air intake, wires and constant maintence I put into it i get in between 38 and 42.
also btw i think since this car is so slow ppl have a tendency to gas a little to hard, i have a manuel and to other manuel aveo owners try practicing to a t proper shift points that also makes a world of differance

i just found out my parents (who own the car) are 2000 miles over oil change... and they dont seem to care.

i want to scream, i was hoping they would take care of it, and when the warrenty runs out i was going to add a body kit and work on the rest of the car to make it nicer. since they want to keep the car a long time.

zx2guy... 2,000 miles past the oil change and they don't care? Seems like a bit of a contradiction with "they want to keep the car a long time" unless their idea of keeping a car a long time is to run it into the ground in 2 years and then park it in the back yard for 20.

there are times i wonder the same, i was the car carer when i lived w/ them. i made sure they were clean and up to date on everything. since then the cars havent been waxed, they go over the oil change, but i suppose i cant complain. between a job, school, and my weekend work i dont have much time either

My Aveo was giving me between 25-26 miles (rural Pennsylvania driving). Another happy owner suggested that for my next oil change I should switch to CASTROL. I used a service place that only use CASTROL SYNTEC BLEND OIL and I am now getting 30.8 miles PLUS I received a $5.00 rebate directly from Castrol for my next oil change. I am quite pleased with the results. I plan to change the tires at 12,000 miles.

I'm trying to get best mpg with my aveo. Besides tire psi, oil change, clean air filter, non aggressive driving, what else can you do? What is the advantage of special spark plugs or different ignition? Anybody suggest any mod's that have worked?

this is very similar to something i wanted to try. however yes different plug and wires, (basically the thicker the wires the more efficient the "zap", better bang <more visable on higher tuned vehicles though) Cold air intake or short ram, making the air's ride into and out of the car as smooth as possible (remove resonators, different cat, aem muffler). also aerodynamics play a role, a friend of mine said he lowered his car about an inch and a half and picked up about 1 mpg... doesnt seem like much but every little bit counts. also there are undervrive pulleys out there that can help... but i suggest you look into it, and do NOT just totally omit something like getting a s-belt that omits AC and power steering, yes it can help but its doing more harm then good. if you are well to do. and i suggest this on older vehicles... IF you believe it. they say that for every so long of wire(uncluding plug, lights, ect) you lose 1hp. thus why dragsters cut thier plug wires to fit. however i do not suggest this either.
as for your driving "style" i picked up about 6 more mpg (in my zx2) from drafting semi's < again i suggest against. but something that helped was poping the car into neutral down hills. especially big ones. ive hit well over 90 mhp in my old laser in the hills of ky. topics to also think about: weight < if you dont need it Ie air boxes... why keep it its dead weight that ussually restricts flow, A and F, make sure your motor can breath in and out. also MAINTAINANCE MAINTAINANCE. people ussually put injector cleaner in their car, but its bad for your car (eats away at certain components) and get a pro to look at your car if any thing starts to feel funny. just remember to keep your car safe.

Only mod i have is a K&N Air Filter. I get around 26-27 city 31-35 hwy on chevy's oil.

i didnt really take into account money. i dont know how much you want to spend. some people only want to spend a few houndred on the generic intake and exhaust mods.

but the more into it you are you can go with the higher end stuff that people tend to forget... ie ported throttle bodies, or larger ones. modify the intake, size/fit ports, cams, roller rockers, flat top pistons, chips, headers, full exhaust, (if auto) shift kit. (if stick) lighter fly wheel, different clutch. granted these are the more expensive of them. each have their own perk or drop in performance. it all depends on how much you want to spend, your desired effect, and where you are located (ie city might have a wider selection then the sticks of KY<ild know)

Update on my Auto Aveo LS 05
With K&N Air Filter, just put in Castrol Syntec 5w-30

34city and 49hwy

I let it shift normally around 3000-3500 rpms. and acually flooring it i can bur a little of rubber too. no CAI on this car.

i wouldnt put one in anyway, something about the air filter being that low... what if it got ripped off or you hit a good sized puddle.

i wouldnt put one in anyway, something about the air filter being that low... what if it got ripped off or you hit a good sized puddle.

Its not low or anything. the oil gm puts in usually is to heavy weight of oil for the aveo motor. plust the synthetic really freed up that motor. i can romp on it and burn a little bit of rubber now. or go light and get great gas mileage. the K&N helped a little but mostly in power. the motor was too clogged up with that gm shit 10w-40 that it wouldn't get any good power till high rpms, and yes an aveo can burn rubber on pavement, not just a 5 speed but this is an automatic. it cornered great at high speeds too. i think chevy shouldn't even be doing this car because they can't even matnence the thing right. let someone else do it. come on, bad clocks, 20psi in each tire every visit at chevy, their trying to rip you off. i think this car can do more, but chevy is ruining its name...

im just saying about the cai, what you have is more along the lines of a short ram. those in fender low cai i dont like.unless it absolutely needs to go in the fender cuz there is no room.

what kind of oil do you run? 5 -20?

thats what my zx2 takes (ford being the dummasses they are ran 5 30 in the vct motors till it threw the code for vct malfunction, then they lightened up to 5 20)

i also wonder about little things like what if you swapped to roller rockers? granted it would be better for a mechanic to do because alot goes into it. or one of those carbon fiber hoods with the scoop offset to go right to the filter.

i just found out my parents (who own the car) are 2000 miles over oil change... and they dont seem to care.

i want to scream, i was hoping they would take care of it, and when the warrenty runs out i was going to add a body kit and work on the rest of the car to make it nicer. since they want to keep the car a long time.

Two thousand miles over isn't a whole lot over. Keep in mind, the "severe" service schedule is supposed to cover all from the less than "normal" to the severest of the severe. Three thousand miles between changes...is really only needed for old-lady service and dirt-road driving.

4000-5000 miles between changes is probably okay, unless you scale Pike's Peak for a living and drive from below freezing to warm-summer temperatures every day.

With highway usage, 7500 is again the most conservative. If you went 10000 miles without changing...unless you had blowby or extreme temperature swings...I wouldn't worry.

The frequent oil change is "insurance." Only a small percentage need to use their insurance - be it collision or oil change.

Take a deep breath. Engine wear is cumulative. The car isn't ruined because the oil got a little yukky...once.

if u wanna add some pep and help ur gas mileage out a bit u can modify ur air intake. i took the original airbox out of my aveo and put a peice of exhaust pipe in the intake pipe amd slapped a Ractive racing filter on it. another benefit is it sounds frickin awesome. it made my car so much more fun to drive. i have gotten compliments on the sound because it sounds like i have an exhaust on it. and i love the extra pep i got from it now when i race and i pop it into 2nd gear the tires chirp and also a set of NGK racing plugs dont hurt either.

Two thousand miles over isn't a whole lot over. Keep in mind, the "severe" service schedule is supposed to cover all from the less than "normal" to the severest of the severe. Three thousand miles between changes...is really only needed for old-lady service and dirt-road driving.

4000-5000 miles between changes is probably okay, unless you scale Pike's Peak for a living and drive from below freezing to warm-summer temperatures every day.

With highway usage, 7500 is again the most conservative. If you went 10000 miles without changing...unless you had blowby or extreme temperature swings...I wouldn't worry.

The frequent oil change is "insurance." Only a small percentage need to use their insurance - be it collision or oil change.

Take a deep breath. Engine wear is cumulative. The car isn't ruined because the oil got a little yukky...once.

I agree -- stopped changing oil at 3000 miles a long time ago. Even many experts agree that it's a major waste of oil. Used to go 5000 miles between changes with conventional oil, but have switched to Mobil 1 and now change no sooner than 8000 miles.

P.S. Have been driving 36 years and have never had an engine failure even though I've put 200,000+ on many of them. Every other part of the car will fail before the engine with a longer interval between oil changes.

i think overall care for your vehicle dictates its life span (at least relatively compared to it and its sister cars). and some things go bad due to the make and model ( like how ford f 150, explorers, and rangers eat thier ball joints at 40,000, or the focus's screwed up suspension setup) also the design. others to the climate > salted roads, coastal areas, high altitude. i figure if you know what you are doing your car can last forever... and as long as you replace the little things.... gaskets, and other wearable or degradable things.

I'm sorry but I'm in Indonesia and I'm not used in using miles/gallon, I'll use km/litre. The daily consumption of my m/t 2004 Aveo is around 9 to 11 kms/litres (approx 20,67 miles/gallon). It really depends on how deep you step on the gas pedal. Try to hold it under 2000rpm and it can be more efficient. But don't force to use high gear when you don't have enough power, you can lose gas for nothing. Just try to understand the characteristic of the road.

2004 Aveo sedan, 5 speed. 87,000 miles. Average about 30 to 31 on the highway, about 28 in town.

I have a 2005 Aveo sedan 5spd at 9500 miles and am currently getting 32.07 mpg. I got this car from a guy who repossessed it so there are things that are aftermarket on it (tires and rims). Not to mention there isn't a manual so I'm looking for a manual, do they sell those at a chevy dealer?

I love the car, lots of pep and it never gets dull for me, only on long ass road trips. Most of my driving is mixed between city/highway.

What I find surprising is that castrol improves fuel economy, I'm going to have to start asking around places to see if they use that oil (i don't know how to change it myself, but I am willing to learn), because like someone else said, you get an improvement of 8 mpg and that is a God send!

i do beleive you can get a manual off e-bay but your best bet would be a trip to your local dealer.

Thanks!!